woocommerce/tests/legacy/unit-tests/rest-api/Helpers/QueueHelper.php

<?php
/**
 * Helper code for wc-admin unit tests.
 *
 * @package WooCommerce\Tests\Framework\Helpers
 */

namespace Automattic\WooCommerce\RestApi\UnitTests\Helpers;

defined( 'ABSPATH' ) || exit;

/**
 * Class QueueHelper.
 *
 * This helper class should ONLY be used for unit tests!.
 */
class QueueHelper {

	/**
	 * Get all pending queued actions.
	 *
	 * @return array Pending jobs.
	 */
	public static function get_all_pending() {
		$jobs = WC()->queue()->search(
			array(
				'per_page' => -1,
				'status'   => 'pending',
				'claimed'  => false,
			)
		);

		return $jobs;
	}

	/**
	 * Run all pending queued actions.
	 *
	 * @return void
	 */
	public static function run_all_pending() {
		$jobs = self::get_all_pending();

		foreach ( $jobs as $job ) {
			$job->execute();
		}
	}

	/**
	 * Run all pending queued actions.
	 *
	 * @return void
	 */
	public static function process_pending() {
		$jobs = self::get_all_pending();

		$queue_runner = new \ActionScheduler_QueueRunner();
		foreach ( $jobs as $job_id => $job ) {
			$queue_runner->process_action( $job_id );
		}
	}
}